Ben Dilley (FitzPatrick Institute, University of Cape Town) describes in the on-line/open access journal Ornithological Observations how a Northern Giant Petrel Macronectes halli managed to land on a cliff ledge and kill a Sooty Albatross Phoebetria fusca chick on sub-Antarctic Marion Island.

Great pictures!

A Northern Giant Petrel on Marion Island, photographed by Marienne de Villiers

Reference:

Dilley, B.J. 2013.  Living on the edge: Sooty Albatross chick killed by a Northern Giant Petrel.  Ornithological Observations 4: 138-142.

John Cooper, ACAP Information Officer, 30 October 2013